Q. If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards then

 1989  164 Punjab PMETPunjab PMET 2005 Report Error

Solution:

When the ball is thrown upwards, then there is only the change in the vertical velocity of the ball but the horizontal velocity of the ball (equal to velocity of man) will remain same, so the ball will return to throwers hand.